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Method for calculating bandwidth and distributing bandwidth in wireless ad hoc network

A wireless ad hoc network and computing method technology, applied in the field of information networks, can solve the problems of difficulty in determining the ratio of resource division, waste of resources, etc.

Inactive Publication Date: 2015-01-21
PLA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Many existing methods use channel reservation schemes based on resource partitioning to ensure the service quality of high-priority services, but this method may cause a huge waste of resources, and the ratio of resource partitioning is not easy to determine

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  • Method for calculating bandwidth and distributing bandwidth in wireless ad hoc network
  • Method for calculating bandwidth and distributing bandwidth in wireless ad hoc network
  • Method for calculating bandwidth and distributing bandwidth in wireless ad hoc network

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Embodiment Construction

[0027] In the following, the present invention will be further clarified with reference to specific examples. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various equivalent forms of the present invention. All the modifications fall within the scope defined by the appended claims of this application.

[0028] 1. Bandwidth calculation method of wireless ad hoc network based on time slot division

[0029] First, explain the bandwidth calculation method when hidden terminal conflicts are not considered. Bandwidth calculation can be realized by exchanging routing tables containing bandwidth information and routing information between neighboring nodes. Let CFS(x,y) denote the public free time slot set of the link (x,y), and CFS_bw denote the reservation message from the downstream node The set of public free...

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Abstract

The invention discloses a method for calculating the bandwidth and distributing the bandwidth in a wireless ad hoc network. The method includes the TDMA-based bandwidth calculation method in the wireless ad hoc network and the bandwidth distribution scheme based on the service priority, wherein the TDMA-based bandwidth calculation method in the wireless ad hoc network includes the bandwidth calculation method under the condition of not considering a hidden terminal and the bandwidth calculation method under the condition of considering the hidden terminal. The available bandwidth information between any two nodes is obtained, and a source node can select the routing, meeting the bandwidth requirement, to the target node and can be used for deciding whether to allow new connection to be accepted or not. According to the self-adaption bandwidth distribution mechanism based on the service priority, the emergency degrees of service requirements of different services are taken into consideration, application is flexible, implementation is easy, and the method is feasible.

Description

Technical field [0001] The present invention relates to a method for calculating network bandwidth, alleviating congestion, and reasonably allocating bandwidth in a wireless ad hoc network. It specifically includes a bandwidth calculation method and a bandwidth allocation plan, and particularly relates to a bandwidth calculation method based on time slot division and based on business priority. The design of advanced adaptive bandwidth allocation scheme belongs to the field of information network technology. Background technique [0002] The wireless ad hoc network, with its outstanding characteristics of centerlessness, mobility, and self-organization, has broad application prospects because it does not need to rely on infrastructure such as base stations and communication cables. Its networking technology has been a research hotspot in recent years, emergency communications, battlefields Information reconnaissance, tactical communication, etc. are typical application scenarios....

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W28/14H04W72/08H04W72/12H04W72/54
CPCH04W28/20H04W28/26H04W28/14H04W84/18H04W72/569
Inventor 王海涛宋丽华陈晖张学平张国敏吴强闫力许尹颖
Owner PLA UNIV OF SCI & TECH
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